"My family is very close, and my dad dying was brutal for all of us," the Silver Linings Playbook star, 38, tells the magazine. "It was a schism, and its aftershock has not stopped. And we need each other. So here we are."

Still, having mom around is "not without complications."

"It's not like I live in a compound and she's in the guesthouse," he says. "No, she's in the next room."

But they're all making the best of it. "We're surviving. Both of us. Let's face it: It's probably not easy for her, by the way, to be living with her son," he says. "It's life."